The MIL-DTL-38999 Series II connectors offer high-performance connectivity with up to 128 contacts in an environmentally sealed insert. Designed for harsh environments, these connectors feature various mounting options including front wall, rear wall, jam nut, and box mount receptacles. Available in 9 shell sizes and 52 insert arrangements, they utilize M39029 rear release crimp contacts for reliable connections. With a wide range of plating options, including RoHS certified finishes, these connectors ensure durability and longevity. Suitable for military and industrial applications, they guarantee secure and efficient electrical connections in demanding environments.